The complete mitochondrial genome of Sardinella fijiensis (Clupeiformes: clupeidae) and phylogenetic studies of clupeidae

The complete mitochondrial genome of Sardinella fijiensis was determined in this study, which was 16,651bp long, containing 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, a putative control region and one origin of replication on the light-strand. The overall base composition includes C (29.4%), A (26.4%), T (24.7%), and G (19.5%). Moreover, the 13 PCGs encode 3799 amino acids in total, 12 of which use the initiation codon ATG except COI uses GTG, most of them have complete stop codon, whereas three protein-coding genes (COII, ND4, and Cytb) ended with the incomplete stop codon represented as a single T. The phylogenetic tree based on the Neighbor Joining method was constructed to provide relationship within Clupeidae, which could be a useful basis for the further understanding of this species.